kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 21231 Comm: syz-executor0 Not tainted 4.4.125-g38f41ec #63
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800ae3d9800 task.stack: ffff8801c1648000
RIP: 0010:[<ffffffff825bd7cc>]  [<ffffffff825bd7cc>] sg_read_oxfer drivers/scsi/sg.c:1978 [inline]
RIP: 0010:[<ffffffff825bd7cc>]  [<ffffffff825bd7cc>] sg_read+0xd3c/0x14d0 drivers/scsi/sg.c:530
RSP: 0018:ffff8801c164fbc0  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8801caf88140 RCX: ffffffff825bd793
RDX: 0000000000000000 RSI: ffffc90000cb1000 RDI: ffff8801caf88170
RBP: ffff8801c164fcd0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 1ffff100382c9f3e R12: ffff8801d235e3c0
R13: 0000000000000000 R14: 000000007fffefdc R15: ffff8801caf88000
FS:  00007f8ed7f47700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000728020 CR3: 00000000b94d8000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000001 ffffffff83fcc758 ffffffff81b4db00 ffff8801caf88158
 00000000ffffffff ffff8801caf88168 000000007ffff000 00000000ffffffff
 0000000000000000 0000000000001000 1ffff100382c9f84 0000000020000064
Call Trace:
 [<ffffffff8151d873>] __vfs_read+0x103/0x440 fs/read_write.c:432
 [<ffffffff8151f713>] vfs_read+0x123/0x3a0 fs/read_write.c:454
 [<ffffffff81522059>] SYSC_read fs/read_write.c:569 [inline]
 [<ffffffff81522059>] SyS_read+0xd9/0x1b0 fs/read_write.c:562
 [<ffffffff83779965>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 ad 06 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 28 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 81 06 00 00 4d 8b 6d 00 4d 85 ed 0f 84 46 03 
RIP  [<ffffffff825bd7cc>] sg_read_oxfer drivers/scsi/sg.c:1978 [inline]
RIP  [<ffffffff825bd7cc>] sg_read+0xd3c/0x14d0 drivers/scsi/sg.c:530
 RSP <ffff8801c164fbc0>
---[ end trace 240e20cf7b76dc69 ]---